含能材料Issue(4)：485-489,5.DOI:10.3969/j.issn.1006-9941.2013.04.016
RDX和HMX晶体力学性能的分子动力学模拟及其撞击加载响应
Molecular Dynamics Simulation on Mechanical Properties of RDX and HMX Crystals and Their Impacting Load Response
摘要
Abstract
The mechanical properties of RDX and HMX crystals were investigated by using molecular dynamics simulation method. The fracture properties of the crystals were analyzed with impact test,laser diffraction size analyzer and scanning electron micro-scope. The results show that the calculated elastic constants and modulus of HMX crystals are higher than those of RDX crystals. The ductibility of RDX crystals is better than that of HMX crystals. Under the same impact condition,both the plastic deformation and fragmentation appear in crystals. The plastic deformation is preponderant in RDX crystals,and the fragmentation is preponder-ant in HMX crystals and their fracture is much more severe. The molecular dynamics simulation on the mechanical property for dif-ferent explosive crystals is accuracy and reliability.关键词
材料力学/分子动力学模拟/RDX/HMX/力学性能/破碎特性Key words
material mechanics/molecular dynamics simulation/RDX/HMX/mechanical property/fracture property分类
军事科技引用本文复制引用
郭昕,南海,齐晓飞,田轩,牛余雷,张军平..RDX和HMX晶体力学性能的分子动力学模拟及其撞击加载响应[J].含能材料,2013,(4):485-489,5.基金项目
总装备部预研基金资助（401030401）。 （）
